main-hack.js

Parse.Cloud.afterSave("Upload", function(req) {

  if(req.user) {

    if(req.object.has('type') && req.object.has('file')) {
      var type = req.object.get('type');
      if(type === 'avatar') {
        
        console.log("Saving file..." + req.user.id);

        // Switch to the master key
        Parse.Cloud.useMasterKey();

        var user = Parse.User.current();

        user.set('avatar', req.object.get('file'));
        user.save(null).then(function(u) {
          console.log("Updated User_");

          // Delete the original Upload object!
          req.object.destroy({});

        }, function(e) {
          console.log("Error saving User_ " + e);
        });

      } else {
        console.log("Unknown image type!");
      }
    } else {
      console.log("Invalid Params");
    }

  } else {
    console.log("Unauthenticated");
  }

});